Gin-saw-fiung machine



(N0 Modem G. N. ANTHOINB.

GIN SAW FILING MACHINE.

Patented Aug. 25, 1896.

mi cams News co, hammams.. WA'SNINGYON. o. c.

UNITED 4STn'f-rns Y 'Parnrvr trice.

GIN-SAW-FILING NlACHiNE.

SPECIFICATION forming part of Letters Patent No. 566,646, dated August25, 1896. Application filed September 9, 1895. Serial ITo. 562,019. (Nomodel.)

T all?, wiz/0m, t ntay concern:

Be it known that I, GEORGE NICHOLAS AN- THOINE, a citizen of the UnitedStates, residing at Birmingham, in the county of Jefferson and State ofAlabama, have invented certain nenT and usei'ul Improvements in Gin-Saw-Iiiling Machines; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to improvements in that class of gin-saW-iilingmachines in which verticaliy-reciprocating files sharpen the sawswithout removal from the mandrel; andthe objects of my improvement are,first, to provide a gin-saiv-iiling machine with verticallyreciprocatingrods having chucks attached at their lower ends to hold the iiles andreciprocate the same on the teeth of the saws; sec ond, to providefacilities for the proper adjustment of the machine above the saws andthe adjustment of the file-carrying reciproeating rods to any desiredangle or position 'to bring the files to bear properly on the teeth ofthe saws; third, to provide a twisting or part-rotary motion to thefiles when acting on the saw-teeth and to release the les from rubbingby throwing them off the saw when making the return or up stroke. Iattain these obj ects by the mechanism illustrated in the accompanyingdrawings, in Which- Figure l is a vertical front view of the entiremachine as shown in position on part of a gin-saw mandrel. Fig. 2 is avertical side view of the same. Fig. 3 is a vertical crosssectionalvieuT of the machine proper of Fig. l, through the center. Fig. 4 is anenlarged detail vertical back view of the saw-feeding cam. Fig. 5 is anenlarged detail vertical view or" the rod-bearin g slides on the facesof the outer eccentric. Fig. 6 is a cross-sectional vieiv of the samethrough the center.

Similar numerals refer to similar parts throughout the several views.

The part of a gin-saw mandrel l, as shown, represents the usual form ofsaw-mandrel, having a series of saws 2 and a series ofseparating-collars 3 secured thereon in the usual manner.

The gin-saw filer proper is provided with stands 4; a, made oi' anysuitable metallic material. The stands are adapted to be supported onthe collars between the saws. The heads of the stands are attached bysplit collars 5 to a short piece of shaiting (i and can be moved oradjusted to any desired position on the shaft. Two vertical slottedplates 7 7 are also attached to the shaft With split collars and aremovable to any desired position.

The main frame of the filing-machine is made of two metallic plates 8 8,the plates attached by a series of screws 9. The frame is attached tothe slotted pla-tes 7 7 in the usual manner by clamping-bolts. A mainshaft lO is journaled in the center of the frame, the shaft having amain gear-Wheel ll rigidly mounted thereon. The outer end of the shaftis provided with a crank-handle 12 to turn or rotate the same. The backend of the shaft is provided with a double lifter 13 to operate thesliding cam, as hereinafter described.

The sliding cam la is formed as shown. A lip 15 is formed on the insideto engage the lifter. A fork is formed on the head to embrace aprojection 17 on the frame, a Washer and screw 1S holding the cam toplace. A stern extends downward from the cam and connects pivotally to atrip-lever 19. The trip-lever is pivoted in projecting arms 20, attachedto the frame, a coiled spring 2l being placed on the cani-stem to presson the trip-lever downward. A saw-tooth catch 22 is pivoted in the lowerend of the trip-lever, a series of holes being provided to adjust thecatch as desired. An adjustable collar carrying a spring 23 is placed onthe tripdever above the catch. The spring pressing down- Ward holds thecatch in contact with the savvteeth.

Two slotted extensions 24 24 are formed on the head of the frame.Adjustable bearingposts 25 25 are placed in the slots, the posts adjusted and held at any desired position by a series of jam-nuts 2C. Theheads 27 27 of the bcaringposts are provided with apertures for thehie-carrying rods to slide in, as hereinafter described.

Two gear-Wheels 2S 2S, rigidly mounted on shafts, are journaled in theupper part of the frame, the Wheels connecting with the main gear. Thefront ends of the shafts are provided With cranks 29 29, rigidlyattached IOO thereto, the cranks having connectingfrods 30 30 pivotallyattached and pivotally connecting to slip-clamps 31 31, attached to thereciprocating file carrying rods 32 32, inserted in the bearingsprovided therefor. The tile-carrying rods are provided at their lowerends with chucks 33 33, the chucks adapted to hold and secure thereinthe usual form of saw-files 34 34, as shown. The upper end of thefile-rods is provided with twisted slots 35 35, having the point of thehead-screws 3G 36 inserted therein to give a part-rotary motion to therods as they slide up and down when in motion. A gear-wheel 37, rigidlyattached to a shaft, is journaled in the lower part of the frame, thegear connecting withv the main gear. Double eccentrics 38 38 are rigidlyattached to front end of the gear-shaft. The eccentrics are inclosed instraps 39 39, formed on the lower ends of the sliding jaws 40 40, thesliding jaws carrying adjustable rods 41 4l to adjust the lower bearings42 42 of the file-carrying rods. The adj Listing-rods 41 41 are providedwith screw-threads to attach them to like screw-threads formed in thesliding jaws and are held to place by jam-nuts 43 43. The opposite endsof the adjusting-rods have plain spindles sliding in the center bearings44 44, the spindles, fitted with coiled springs 45 45, havingtension-adjusters 46 46 to press the tiles to the saws onthe'downstroke. The eccentrics 38 38, operating on the sliding jaws andpushing them inward, throw the files off and prevent them rubbing thesaws on the upstroke.

In operation the machine is placed with the standsl resting on the`collars between the saws.- The crank-handle when turned rotat-es themain gear and saw-feeding device. The main gear rotates the crank-gears,givlug a reclprocating and part-rotary motion tothe les. The' main gearalso rotates the eccentric-gear, giving the throw-off motion to thefiles on the upstroke. The rotation of kthe handle is continued untilone saw is naled in a frame the shaft having a crankhandle 12 mounted onthe outer end thereof,

a cam-lifter 13 attached to the back end of the shaft 10 the lifteradapted to lift the yoke 14 pivotally connected to a trip-lever 19, thetrip-lever provided at its lower end with a series of holes to pivotallyand adj ustably attach a saw-tooth catch 22, substantially as and forthe purpose described.

2. The combination of the pinion 3'7 mounted on a shaft journaled in theframe the pinion connecting` with the gearwheel mounted on the mainshaft, two reversed eccentrics 38, 38 mounted on the end of thepinion-shaft and operating the sliding jaws 40, 40, the jaws carryingthe file-rod bearings and moving the jaws in opposite directions,substantially as described.

3. The combination of the tile-rod bearings 42, 42 carried onadjusting-rods 4l, 4l the rods provided with springs 45, 45 andadjusting-screws 46, 46, two sliding jaws 40, 40 attached to theadjusting-rods and adjusted thereon by screw-threads and jam-nuts,substantially as and for the purpose described.

In testimony whereof I ailiX my signature in presence of two witnesses.

GEORGE NICHOLAS ANTHOINE.

Witnesses:

R. A. McADoRY, C. CLAUDY.

